Fluted delivery roll



Jan. 29, 1935. J. T. AHEARN 1,989,439

FLUTED DELIVERY ROLL Filed Oct. 5. 1953 a mmmulllull Patented Jan. 29, 1935 UNITED STATES PATENT OFFICE.

,- v a 1,989,439 l" n. y j

vFLUTED` DELIVERY ROLL John T. vAKI-learn, Lowe-ll, Mass. Application octobers, 193s, serial No. 691,939

n 4 oiaims. (0119-141) i This invention relates to textile drawing rolls chines. v

5- Some of these frames are of great width and the drawing roll may be anywhere from ve or tenv toY forty feet in length. Each complete roll 'or rollv assembly is formed with'bosses fluted longitudinally andbetween these bosses there are generally necks some of which may be bearings or there may be at suitable intervals other bearing parts which may be of greater or eter than the necks. f

' Suchtextile drawing rolls are frequently made of hard steel rods and in lengths of five, ten or twenty feet which have been turned down and the flutes machined.` The parts must be hardened andthe machining must be very accurate and is very expensive and if `any part becomes dented or broken a large sectionmust be removed while the frame is stopped and the repair is slow and expensive. To avoid the use of very long, integral rolls less diamvarious coupling devices have been used whichv involve the cutting of internal'and external screw threads or square holes at the end of a cylindrical hole all of which are very expensive and very dicult to cut accurately;I v y The purpose of this invention vis to providev a textile drawing roll made up of sections which are firmly coupled together in such a manneras to' make a `roll of any -desired length'and one in which the sections can be taken apart only by the application of heat. For this purpose, vI use relatively short roll sections each having fluted bosses on vthe outside separated by suitable necks, the adjoining sections being coupled together by a special type of coupling which preferably consists of a hard metal rod soldered into the adjoining ends of adjoining sections.

I also provide a special coupling by which adjoining rolls each made up of several sections can be connected and disconnected without the use of heat.

A roll of my construction is cheap, light and at the same time is well balanced and can readily be taken apart for repairs.

In the drawing, Fig. 1 is an elevation partly in section and broken so as to show a plurality of roll sections connected together.

Fig. 2 is a View similar to Fig. 1 showing a modication of the coupling.

Fig. 3 shows another modification of the construction.

- VFig. 4 is an isometric viewfoi a stop-member and Fig. 5 is an isometric View of a modied form'of stop member. v

- Fig. 6 is an isometric View showing one form of-couplingmember.' 7

Fig. "7 is an isometric View of` a modification of the coupling member. l A f In the drawing, Fig. 1 shows how several sec tions such as C, F and B are united to form a larger section or a whole roll. Each section is of tubular form with an axial passage 24, 34, or 44 whichextends through it and'on the outside is provided with'fluted bosses 21, 31 or 41 separated by necks 22, 32 or 42 of less diameter thanV the fluted bosses.

At each end of each section is an axial recess such as 23, 33, 133 or 43 which is vof 'greater diameter than its adjoining passage, 24,y 34 or `44. These recesses are preferably and are shownA as being of cylindrical form and are practicallycounter-bores at each end of each tubular section. Injthis way, there is formed between each passage and at the end of each recess an internal shoulder such as 25, 35, or 145 and against each of these shoulders, I first place a stopk disk preferably of metal such as I-I, H, I-I, H softhat itrests against a shoulder and blocks up the axial passage. i 1 To connect anyv two sections such as C, F and B', I useicylindrical hard metal rods `as coupling members which are indicated by G, G, G, G, each member G being of a size to slip easily into a recess such as 23, 3,3, 133 or 143 until it rests against a disk I-I. n I

In assembling the wholexroll, after the 'disks I-Iare put in place, a sufficient amount of ,solder S, preferably of low "fusibility, ispour'ed' into the appropriate recess and then a coupling G is pushed into place so that when the solder hardens, it is firmly and accurately held in such a way that it will not separate from the tubular section.

By using a solder of low fusibility in connection with any well known type of electric heater, a roll section can be taken apart in the mill without danger of fire or, of course, a blow torch or other similar lheating medium can be used.

By using tubes for roll sections, with an axial passage, the weight and the cost of metal is reduced while at the same time by counterboring or forming at each end a concentric cylindrical axial recess of greater diameter than the axial passage of the tube, an annular shoulder is formed which permits the stop disc to be inserted and to limit the distance in which the coupling 'an r..

member will go. While this stop disc prevents the solder from running into the axial passage of the tube, it permits the air to go through and the result is that the solder is evenly distributed between the coupling member and the counterbore. If such stop discs were not used, the solder would run into the axial passage and be not only useless, but would unbalancepthe whole roll. A solder of such low fusibility that it will melt at the boiling pointof ywater can be -used and there is, thereiore, `no injury to the metal either when assembling or disassembling the parts.

However, as a matter of convenience in con-` be called a major section, which includes several of the small sections, can be instantly takenout. without the use of heat, I may provide at inter` vals a modification of my coupling members suchr as shown in Figs. 2, 3, 6 and 7.

coupling `such as G between two sections, I use a compound coupling including two cylindrical coupling members such as K and L each of which enters a recess in the end of adjoining sections and rests against a disk therein. One of such coupling members such as K projects from one end and the other such as L terminates inside Jltsvrecess'fI The outer ends of each of said coupling members K and L are cut straight across, as atfl and 3, leaving stubs 2 and 4 which, when the adjoining couplingsare fitted together, entirelyiill the recess and make a perfect joint which willhold the parts together without rattling or Slimme As shown in Fig. 7, instead of cutting the ends of these adjoining coupling members straight across forming half circles, I can use a mortise construction in which'the cuts 5V and` 6 leave a tenonat 7 which enters a mortise groove 8 betweenc the two ends. 9 and 10 of-an adjoining coupling whichterminates inside its recess. 'l Couplings such asshown and described Figs. 2 3, 6 and 7 can obviously be used between any two of the minor sections such as C, F and Band Aas they do not require any careful machining or screw cutting, they are much less expensive )and atthe same time are as accurate or more accurate than other constructions.

As shown in Fig. 3, a type of coupling suchas -shown atv K and L, with either cutting shown in Figs. 6 or '7, can be used with roll sections Lsuch as Rand T made of solid metal with recesses such'as 53 and 63 into which they are soldered. Instead of disk stops such as H, I mayusestops of mushroom shape suchv as shown at Vin Fig. 5 .having a neck '70 which enters a passage and a cap 71 which Arests against a shoulder.

I claim:

1. In a textile drawing roll, roll sections each having an outside iiuted part and being of tubular form with an axial passage which extends through it and having at each end a cylindrical axial recess of greater diameter than said passage whereby an internal shoulder is formed; metal stop disks each of which rests against a shoulder; and two cylindrical coupling members, each of which enters arecess, -rests against a stop disk-and is soldered 1in place, one of said coupling members projecting from one end and the other terminating inside its recess, the outer ends of said coupling members being cut straight across in such manner that when the ends of adjoining couplings are fitted together, they fill the recess.

' 2. In a textile drawing roll, roll sections each .having an outside uted part and being of tubur lar form with an axial passage which extends In Figs. 2 and 3 instead of a single integral through itand having at each end a concentric cylindrical. axial recess of greater diameter than said passage whereby an internal shoulder is formed; metal stop disks each of which rests against a shoulder; and a cylindrical coupling member which enters a recess, rests against a stop disk and is soldered in place, the stop disks acting to prevent the solder from runninginto the axial passage while permitting the escape of air thus facilitating the even distribution of the solder between ther coupling members and the walls of the recesses. 'Y

l 3. In a textile drawing roll, roll sections each having an outside i'luted part and an axial passage which extends through it and having at each end an axial recess of greater diameter than and concentric with said passage whereby an internal,` shoulder is formed; stop disks each of which rests against a shoulder; and a coupling member which enters a recess, rests against a stop ldisk and is soldered in place, thestop disks acting to prevent vthe solder from runningl into the axial passage While permitting the escape .of air thus facilitating the even distribution `of the solder, between the coupling members and the wallsl of the recesses.

4. yIn a textile drawing roll, a roll section lhaving a passage which extendsfthrough it and also havingat one end` an axial recess; a stop member interposed between said passage'and recess; and a coupling member which enters said recess, rests against lsaid stop member and is soldered in place, Asaid stop member acting to prevent the solder from running into the ,passage while permitting the escape of lair thus facilitating the .even distribution of vthe solderbetween the coupling-member andthe-wall of the recess.

,f JOHNT.AHEARN. 

